This name is a synonym of Cressa truxillensis Kunth.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8502557) with original publication details: Muhlenbergia 8(12): 140, 142, f. 28 1912.
This name was in version 1 of The Plant List, record tro-8502557.